golang update function

go-update.sh

function go-update() {
  DSTORE=${HOME}/Programs;
  CURRENT_INSTALL=$(go version | cut -d" " -f3 | cut -do -f2)
  LATEST_STABLE=$(curl -Ss https://go.dev/dl/ | grep -Po '>go.*linux-amd64\.tar\.gz' | cut -d'>' -f2 | head -1);
  LATEST_VERSION=$(echo $LATEST_STABLE | grep -Po '[0-9]+\.[0-9]+(\.[0-9]+)?')

  if [[ ${CURRENT_INSTALL} == ${LATEST_VERSION} ]]; then
	  printf "\nLatest stable version already installed. ${LATEST_VERSION}\n"
  else
	  printf "\nCurrently installed version: ${CURRENT_INSTALL}.\nNewer version ${LATEST_VERSION} is available.\n"
	  read -p "Would you like to install latest version (${LATEST_VERSION})? y/n: "

	  case "$REPLY" in
		  Y|y)
			  mkdir -p ${DSTORE};
    	  curl -Lo ${DSTORE}/${LATEST_STABLE} "https://golang.org/dl/${LATEST_STABLE}";
    	  if [ -d "/usr/local/go" ]; then
				  sudo rm -rf /usr/local/go;
				  sudo tar -xzvf ${DSTORE}/${LATEST_STABLE} -C /usr/local/;
    	  else
    		  sudo tar -xzvf ${DSTORE}/${LATEST_STABLE} -C /usr/local/;
    	  fi;
    	  unset DSTORE LATEST_STABLE PKG_FILE
			  ;;
		  N|n)
			  printf "\nNow exiting.";
			  sleep 1;
			  ;;
		  *)
			  echo "$REPLY Didn't match anything"
	  esac
  fi
}